一种采气袋清洗装置

By designing an automated gas sampling bag cleaning device, which utilizes mechanical compression and helium density differences, combined with heater and solenoid valve control, the problem of large workload and inconsistent results of manual cleaning is solved, achieving efficient and uniform gas sampling bag cleaning.

CN224507940UActive Publication Date: 2026-07-17LIANXIN TESTING (JIANGSU) CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
LIANXIN TESTING (JIANGSU) CO LTD
Filing Date
2025-06-18
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In existing technologies, cleaning of non-methane total hydrocarbon gas sampling bags relies on manual operation, which is labor-intensive and makes it difficult to ensure consistent cleaning results.

Method used

An automated gas sampling bag cleaning device was designed, comprising a base plate, a compression plate, a translation mechanism, a replacement gas source, and a ventilation component. The device achieves cleaning through mechanical compression and gas replacement, utilizes the density difference of helium for automated exhaust, and combines a heater and a solenoid valve to control the gas flow rate to improve cleaning efficiency.

Benefits of technology

It reduced manual operations, improved the cleanliness consistency of the gas sampling bags, reduced experimental errors, and increased the rate of removal of non-methane total hydrocarbons.

✦ Generated by Eureka AI based on patent content.

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Abstract

本实用新型公开了一种采气袋清洗装置,包括:底板、挤压板、平移机构、置换气气源和通气件;底板设有气嘴固定件;挤压板与底板平行,且在第一方向上与底板间隔夹设有挤压空间;平移机构包括固定部和沿第一方向往复移动的活动部;通气件具有腔体和与置换气气源连通的气嘴连接口;底板与挤压板中的一者与固定部连接,另一者与活动部连接。将采气袋置于挤压空间内,平移机构控制挤压板接近底板实现采气袋排气机械化,该过程减少了试验人员工作量;机械化清洗较人工清洗,有利于提高袋体洁净度一致性,进而有利于降低试验误差。采气袋的气嘴口向下,将置换气充入采气袋内,实现了向下排气法除去采气袋内的非甲烷总烃,利于提升非甲烷总烃的排尽速率。
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Claims

1. A gas recovery bag cleaning apparatus, characterized by ,include: The base plate is equipped with an air nozzle fixing component; An extrusion plate, parallel to the base plate, is provided with an extrusion space spaced between it and the base plate in a first direction; The translation mechanism includes a fixed part and a movable part that reciprocates along a first direction; Replacement gas source; A venting device having a cavity and a nozzle connection port communicating with the replacement gas source; One of the base plate and the extrusion plate is connected to the fixed part, and the other is connected to the movable part.

2. The gas recovery bag washing apparatus of claim 1, wherein, The ventilation component is also provided with an exhaust port and a replacement air inlet; The replacement gas source, the replacement gas inlet, and the nozzle connection are connected in sequence.

3. The gas recovery bag washing apparatus of claim 2, wherein, In the vertical direction, the exhaust port is located below the nozzle connection port and the replacement air inlet.

4. The gas recovery bag washing apparatus of claim 2, wherein, A displacement gas heater is provided between the displacement gas inlet and the displacement gas source.

5. The gas recovery bag washing apparatus of claim 4, wherein, The displacement gas heater includes a heating tank with an inlet and an outlet. The heating tank is also equipped with a heating coil. The inlet and the outlet are connected through the heating coil. A heating medium heat exchange chamber is provided between the heating coil and the heating tank.

6. The gas recovery bag washing apparatus of claim 1, wherein, Both the base plate and the extrusion plate have a flexible layer laid on their opposing surfaces.

7. The gas recovery bag washing apparatus of claim 1, wherein The lower surface of the base plate is provided with a guide groove, which extends from the edge of the base plate toward the inner side of the base plate, and the edge of the guide groove is provided with a plurality of mounting grooves. The air nozzle fixing component includes a base plate, a rotating paddle, and a locking component. The base plate is removably disposed in the mounting groove. The rotating paddle is rotatably connected to the base plate. The rotating paddle rotates in a horizontal direction. The rotating paddle has an air nozzle fitting portion. The locking component is fixedly connected to the base plate and located on the rotating track of the rotating paddle. The movement path of the rotating paddle includes a first position and a second position. In the first position, an air nozzle clamping space is provided between the air nozzle fitting part and the lower surface of the substrate, and the air nozzle fixing member is located within the locking range of the locking member. In the second position, the air nozzle fixing member is disengaged from the locking range of the locking member.

8. The gas sampling bag cleaning device according to claim 5, characterized in that, It also includes a distance sensor and a first controller, which are electrically connected to the translation mechanism. The distance sensor is used to measure the distance between the base plate and the extrusion plate. At least one of the base plate and the pressure plate is connected to the distance sensor.

9. The gas sampling bag cleaning device according to claim 8, characterized in that, It also includes a first solenoid valve and a second solenoid valve, both electrically connected to the first controller. The first solenoid valve and the second solenoid valve are respectively disposed at the displacement gas inlet and the exhaust gas outlet. The first solenoid valve and the second solenoid valve are respectively used to control the gas flow rate at the displacement gas inlet and the exhaust gas outlet.

10. The gas recovery bag washing apparatus of claim 9, wherein, The displacement gas heater also includes a third solenoid valve, a fourth solenoid valve, a medium heater, a temperature sensor, and a second controller that are electrically connected. The third solenoid valve and the fourth solenoid valve are respectively disposed at the inlet and the outlet, and the third solenoid valve and the fourth solenoid valve are respectively used to control the gas flow rate at the inlet and the outlet; The temperature sensor is disposed between the heating coil and the heating tank; A liquid exchange channel is provided between the heating tank and the medium heater; The second controller is electrically connected with the first controller. The second controller is electrically connected with the first controller.